/Engine/Source/Runtime/Core/Public/Misc/DefaultValueHelper.h
Converts a string into aFLinearColor. Accepted forms: " %d, %d, %d " or " %d, %d, %d, %d " (alpha is optional).
true if the conversion happened, false otherwise
static bool ParseColor ( const [FString](API\Runtime\Core\Containers\FString) & Source, [FColor](API\Runtime\Core\Math\FColor) & OutVal )